The figure below shows a nation's production possibilities frontier for apples and oranges. Apples (millions of bushels per year) 5 4 2 2 D 4 5 Oranges (millions of bushels per year) a. What combination of goods is represented by point A? (10 pts.) b. What combination of goods is represented by point B? (10 pts.) c Which point represents an unattainable combination of goods? (10 pts.) d. The movement from point C to point D results in a free lunch What is the free lunch? (10 pts.)